Rear earth ndfeb permanent magnet
1. Arc or rectangular magnet as clients required.
2. Zinc/Nickel/epoxy coating to protect the surface.
3. Used for electric motors
1. Material: Sintered Neodymium magnet
2. Characteristics:
Super strong Br resident induction.
Excellent demagnetization resistance capability.
3. Surface Treatment Method:
Black Nickel, Chroming, Copper, Epoxy, Gold, Nickel, Nickel+Epoxy, Nickel+Sn, Passivation, Zinc, phosphating
4. Applications of Neodymium Magnets:
AC Motors, DC Motors, servo motors, step motors
Computer rigid disc drives
Magnetic Separators
Magnetic resonance imaging
Speakers & earphones
Medical care machines
Parameter |
unit |
Standard Data |
Curie Temperature(Tc) |
ºC |
310-380 |
Maximum Operating Temperature(Tw) |
ºC |
80-200 |
Hardness |
Hv |
620 |
Electrical Resistivity |
Ω.CM |
1.8X10-4 ~2.0X10-4 |
Density(D) |
g/cm3 |
7.5~7.65 |
Recoil Permeability |
µ rec |
1.05 |
Magnetization Field Strength(Hs) |
KOe |
> 30 |
KA/m |
> 2400 |
Bending Strength |
Mpa |
295~345 |
Temp. Coefficient of Br (aBr) |
%/ºC |
-0.11~ -0.12 |
Temp Coefficient of Hcj (aHcj) |
%/ºC |
-0.5~ -0.7 |
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